/**
 * @author Lisa
 */
$(document).ready(function(){

    //Execute the slideShow
    slideShow();
    
});

function slideShow(){

    //Set the opacity of all images to 0
    $('#gallery a').css({
        opacity: 0.0
    });
    
    //Get the first image and display it (set it to full opacity)
    $('#gallery a:first').css({
        opacity: 1.0
    });
    
    //Set the caption background to semi-transparent
    $('#gallery .caption').css({
        opacity: 0.7
    });
    
    //Resize the width of the caption according to the image width
    $('#gallery .caption').css({
        width: $('#gallery a').find('img').css('width')
    });
    
    //Get the caption of the first image from REL attribute and display it
    $('#gallery .content').html($('#gallery a:first').find('img').attr('title')).animate({
        opacity: 0.7
    }, 400);
    
    //Call the gallery function to run the slideshow, 6000 = change to next image after 6 seconds
    setInterval('gallery()', 10000);
	
    
}

function gallery(){

    //if no IMGs have the show class, grab the first image
    var current = ($('#gallery a.show') ? $('#gallery a.show') : $('#gallery a:first'));
    
    //Get next image, if it reached the end of the slideshow, rotate it back to the first image
    var next = ((current.next().length) ? ((current.next().hasClass('caption')) ? $('#gallery a:first') : current.next()) : $('#gallery a:first'));
    
    //Get next image caption
    var caption = next.find('img').attr('title');
    
    //Set the fade in effect for the next image, show class has higher z-index
    next.css({
        opacity: 0.0
    }).addClass('show').animate({
        opacity: 1.0
    }, 1000);
    
    //Hide the current image
    current.animate({
        opacity: 0.0
    }, 1000).removeClass('show');
    
    //Set the opacity to 0 and height to 1px
    $('#gallery .caption').animate({
        opacity: 0.0
    }, {
        queue: false,
        duration: 0
    }).animate({
        height: '1px'
    }, {
        queue: true,
        duration: 300
    });
    
    //Animate the caption, opacity to 0.7 and heigth to 100px, a slide up effect
    $('#gallery .caption').animate({
        opacity: 0.7
    }, 100).animate({
        height: '70px'
    }, 700);
    
    //Display the content
    $('#gallery .content').html(caption);
    
    
}
